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Finding the Fourth Proportional to 361,718.44, 540,947.82 and 276,355.24

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Solution

The fourth proportional to 361,718.44, 540,947.82 and 276,355.24 is: 413,287.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,718.44 : 540,947.82 = 276,355.24 : x
  2. Step 2: Convert to fraction form
    361,718.44/540,947.82 = 276,355.24/x
  3. Step 3: Cross multiply
    361,718.44x = 540,947.82 × 276,355.24
  4. Step 4: Simplify right side
    361,718.44x = 149,493,764,623.58
  5. Step 5: Solve for x
    x = 149,493,764,623.58/361,718.44
  6. Step 6: Final answer
    x = 413,287.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.